Backlight source, backlight module and display device

ABSTRACT

The present disclosure provides a backlight source and a backlight module at least including a plastic frame, a light guide plate and a backlight source, the backlight source is in the plastic frame and is arranged opposite to the incident surface of the light guide plate, the backlight source includes a circuit board and a plurality of light sources sequentially arranged on the surface of the circuit board, the opposite ends of each light source are provided with the solder feet for connecting the circuit board, and the two solder feet of each light source are arranged in a staggered manner and without overlapping part, with a gap between each two adjacent light sources, the solder feet of the two light sources formed the gap are arranged in a staggered manner in the gap. The present disclosure also discloses a display device.

CROSS REFERENCE

The present disclosure claims the priority of No. 201610431926.5,entitled “backlight source, backlight module and display device”, filedon Jun. 17, 2016, the disclosure of which is incorporated herein byreference in its entirety.

FIELD OF THE DISCLOSURE

The present disclosure relates to a liquid crystal display field, andmore particularly to a backlight source, a backlight module and adisplay device.

BACKGROUND OF THE DISCLOSURE

The liquid crystal display (LCD) has the advantages of body thin, lowpower, no radiation, etc., has been widely used, such as mobile phone,PDA, digital camera, computer screen or laptop screens, the conventionalLCDs on the market are most of the backlit liquid crystal displaydevice, the LCD includes a case, a liquid crystal panel arranged in thecase and a backlight module arranged in the case.

The conventional backlight module includes a plastic frame, a backplate, a light guide plate arranged in the back plate and a backlightsource arranged in the light guide plate, the backlight source includesa light bar circuit board and a LED wick arranged on the light barcircuit board, the placing form of the usually light bar light source isin an adjacent positive and negative way; this placing form is limitedby the circuit board and the length of the light source to determine thenumber of the light sources, in order to enhance the brightness of thebacklight is bound to increase the number of the light sources, and thisstructure will limit the number of the light sources.

SUMMARY OF THE DISCLOSURE

The present disclosure provides a backlight source and a backlightmodule with sufficient light source to enhance the backlight brightnessof the backlight module.

The present disclosure further provides a display device.

To achieve the above object, the embodiment of the present disclosureprovides the following technical solutions:

The present disclosure provides a backlight source including a circuitboard and a plurality of light sources sequentially arranged on thesurface of the circuit board, the opposite ends of each light source areprovided with solder feet for connecting the circuit board, and the twosolder feet of each light source are arranged in a staggered manner andwithout overlapping part, with a gap between each two adjacent lightsources, the solder feet of the two light sources formed the gap arearranged in a staggered manner in the gap.

Wherein, the solder feet of two ends of each light source are firstsolder feet and second feet, in the two adjacent light sources, thesecond solder foot of one end of one light source is avoided the firstsolder foot of one end of another light source.

Wherein, the electrode polarity of the first solder feet and the secondsolder feet of two ends of each light source are opposite.

The present disclosure provides a backlight module at least including aplastic frame, a light guide plate and a backlight source, the plasticframe is arranged around the peripheral edge of the light guide plate,the backlight source is in the plastic frame and is arranged opposite tothe incident surface of the light guide plate, wherein, the backlightsource includes a circuit board and a plurality of light sourcessequentially arranged on the surface of the circuit board, the oppositeends of each light source are provided with solder feet for connectingthe circuit board, and the two solder feet of each light source arearranged in a staggered manner and without overlapping part, with a gapbetween each two adjacent light sources, the solder feet of the twolight sources formed the gap are arranged in a staggered manner in thegap.

Wherein, the solder feet of two ends of each light source are firstsolder feet and second feet, in the two adjacent light sources, thesecond solder foot of one end of one light source is avoided the firstsolder foot of one end of another light source and the position relativeto the side of the first solder foot.

Wherein, the backlight module further includes a back plate, the plasticframe, the light guide plate and the backlight source are accommodatedin the back plate.

Wherein, the backlight module further includes an optical film, theoptical film is superimposed on the light guide plate.

Wherein, the backlight module further includes a double-sided adhesive,the optical film is superimposed on the light guide plate, the backlightsource is fixed with the plastic frame and the optical film through thedouble-side adhesive.

The display device of the present disclosure provided includes thebacklight module and the liquid crystal panel, the liquid crystal panelis arranged on the backlight module.

The solder feet of the light source of the backlight source of thebacklight module of the present disclosure is arranged in a staggeredmanner, on the different lines and without overlapping part, so when thesurface of the circuit board placing a plurality of light sources, thesolder feet of the opposite ends of the two light source are staggeredrather than sequentially connected, the occupied length direction isreduced, may increase the number of the light sources, therebyincreasing the brightness of the backlight module while withoutincreasing the volume of the backlight module.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of thepresent disclosure, it will simple introduce the required figures in theembodiment, obviously, in the following description the drawings areonly some embodiments of the present disclosure, those of ordinary skillin speaking, without creative efforts of the premise, you can alsoobtain other drawings based on these drawings.

FIG. 1 is a schematic diagram of the backlight source in the preferredembodiment of the present disclosure.

FIG. 2 is a sectional schematic of the backlight module of the presentdisclosure.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The present disclosure will now be combined with the implementation ofthe drawings, were a clear example of the technical solutions of thepresent disclosure, a complete description of.

Please refer to FIG. 1 and FIG. 2, the present disclosure provides abacklight source 10 used in the backlight module 20 in the displaydevice, wherein, the display device is a LCD, the display deviceincludes a liquid crystal panel and a backlight module, the liquidcrystal panel is fixed on the backlight module by the double-sidedadhesive, etc., and is provided the light source through the backlightmodule.

As shown in FIG. 1, the backlight source 10 of the preferred embodimentof the present disclosure includes a circuit board 11 and a plurality oflight sources 12. The plurality of light sources 12 are sequentiallyarranged on the surface of the circuit board 11, the opposite ends ofeach light source 12 are provided with solder feet 121 for connectingthe circuit board 11, and the two solder feet of each light source 2 arearranged in a staggered manner and without overlapping part, with a gap122 between each two adjacent light sources 12, the solder feet of thetwo light sources 12 formed the gap 122 are arranged in a staggeredmanner in the gap 122.

The light source 12 is a rectangular block, the plurality of lightsource 12 are arranged on the surface of the circuit board 11 along astraight line or a plurality of parallel lines, that was arranged in arule matrix. In the present embodiment, the plurality of light sources12 are arranged along a straight line, the ends of the plurality lightsources 12 with solder feet are arranged in turn to the ends, and theends of the plurality of light sources 12 with solder feet are arrangedspaced to form the gap 122. The circuit board is a long strip offlexible circuit board.

The solder feet 121 of the two ends of the each light source 12 are thefirst solder feet 1211 and the second solder feet 1212, the first solderfeet 1211 and the second solder feet 1212 are on the overlapping part ofthe two parallel lines, and where the straight lines of the first solderfeet 1211 and the second solder feet 1212 are parallel the lines of thecenter of the plurality of light sources. In the two adjacent lightsources 12, the second solder foot 1212 of the one end of the one lightsource 12 is avoided the first solder foot 1211 of the one end ofanother light source 12, and the position relative to the side of thefirst solder foot. The electrode polarity of the first solder feet 1211and the second solder feet 1212 of two ends of each light source areopposite, i.e. one is positive and one is negative.

The solder feet of the light source in the backlight source arestaggered arranged on the different straight lines and withoutoverlapping part, so when the surface of the circuit board 11 placing aplurality of light sources 12, the two solder feet of the opposite endsof the light source are staggered rather than sequentially connected,the occupied length direction is reduced, the gap between two lightsources may equivalent to the length of a solder foot, saving theoccupied area of the circuit board, the number of the light source maybe increased and the brightness may be improved while without increasingthe area of the circuit board.

Please refer to FIG. 2, the present disclosure provides a backlightmodule 20 at least including a plastic frame 21, a light guide plate 22and the backlight source 10, the plastic frame 21 is arranged around theperipheral edge of the light guide plate 22, the backlight source 10 isin the plastic frame 21 and is arranged opposite to the incident surface221 of the light guide plate 22. Further, the backlight module 20further includes a back plate 23 and an optical film 24, the plasticframe 21, the light guide plate 22 and the backlight source 10 areaccommodated in the back plate 23. The optical film 24 is superimposedon the light emitting surface of the light guide plate 22. The backlightsource 10 is between the incident surface of the light guide plate 22and the plastic frame 21 and fixed with the plastic frame through thedouble-side adhesive.

The backlight module 20 further includes a double-side adhesive 25, theoptical film 24 is superimposed on the light guide plate 22, and thebacklight source 10 is fixed with the back plate 23 and the optical film24 through the double-side adhesive.

The solder feet of the light source of the backlight source 10 arestaggered arranged on the different straight lines and withoutoverlapping part, so when the surface of the circuit board 11 placing aplurality of light sources 12, the solder feet of the opposite ends ofthe two light source are staggered rather than sequentially connected,the occupied length direction is reduced, the number of the light sourcemay be increased, and the brightness of the backlight module may beimproved while without increasing the area of the backlight module.

The above disclosed only a preferred embodiment of the presentdisclosure only, of course, not in order to define the scope of rightsof the present disclosure, those of ordinary skill in achieving theabove embodiments can be understood that all or part of the process, andin accordance with the disclosure of claim made identical change, whichis still covered by the scope of the disclosure.

What is claimed is:
 1. A backlight source, wherein, the backlight sourcecomprises a circuit board and a plurality of light sources sequentiallyarranged on the surface of the circuit board, the opposite ends of eachlight source are provided with solder feet for connecting the circuitboard, and the two solder feet of each light source are arranged in astaggered manner and without overlapping part, with a gap between eachtwo adjacent light sources, the solder feet of the two light sourcesformed the gap are arranged in a staggered manner in the gap.
 2. Thebacklight source according to claim 1, wherein, the solder feet of twoends of each light source are first solder feet and second feet, in thetwo adjacent light sources, the second solder foot of one end of onelight source is avoided the first solder foot of one end of anotherlight source.
 3. The backlight source according to claim 2, wherein, theelectrode polarity of the first solder feet and the second solder feetof two ends of each light source are opposite.
 4. A backlight module atleast comprises a plastic frame, a light guide plate and a backlightsource, the plastic frame is arranged around the peripheral edge of thelight guide plate, the backlight source is in the plastic frame and isarranged opposite to the incident surface of the light guide plate,wherein, the backlight source comprises a circuit board and a pluralityof light sources sequentially arranged on the surface of the circuitboard, the opposite ends of each light source are provided with solderfeet for connecting the circuit board, and the two solder feet of eachlight source are arranged in a staggered manner and without overlappingpart, with a gap between each two adjacent light sources, the solderfeet of the two light sources formed the gap are arranged in a staggeredmanner in the gap.
 5. The backlight module according to claim 4,wherein, the solder feet of two ends of each light source are firstsolder feet and second feet, in the two adjacent light sources, thesecond solder foot of one light source is avoided the first solder footof another light source and the position relative to the side of thefirst solder foot.
 6. The backlight module according to claim 4,wherein, the backlight module further comprises a back plate, theplastic frame, the light guide plate and the backlight source areaccommodated in the back plate.
 7. The backlight module according toclaim 4, wherein, the backlight module further comprises an opticalfilm, the optical film is superimposed on the light guide plate.
 8. Thebacklight module according to claim 7, wherein, the backlight modulefurther comprises a double-sided adhesive, the optical film issuperimposed on the light guide plate, the backlight source is fixedwith the plastic frame and the optical film through the double-sideadhesive.
 9. A display device, the display device comprises a backlightmodule and a liquid crystal panel, the backlight module at leastcomprises a plastic frame, a light guide plate and a backlight source,the plastic frame is arranged around the peripheral edge of the lightguide plate, the backlight source is in the plastic frame and isarranged opposite to the incident surface of the light guide plate,wherein, the backlight source comprises a circuit board and a pluralityof light sources sequentially arranged on the surface of the circuitboard, the opposite ends of each light source are provided with solderfeet for connecting the circuit board, and the two solder feet of eachlight source are arranged in a staggered manner and without overlappingpart, with a gap between each two adjacent light sources, the solderfeet of the two light sources formed the gap are arranged in a staggeredmanner in the gap, the liquid crystal panel is arranged on the backlightmodule.
 10. The display device according to claim 9, wherein, the solderfeet of two ends of each light source are first solder feet and secondfeet, in the two adjacent light sources, the second solder foot of onelight source is avoided the first solder foot of another light sourceand the position relative to the side of the first solder foot.
 11. Thedisplay device according to claim 9, wherein, the backlight modulefurther comprises a back plate, the plastic frame, the light guide plateand the backlight source are accommodated in the back plate.
 12. Thedisplay device according to claim 9, wherein, the backlight modulefurther comprises an optical film, the optical film is superimposed onthe light guide plate.
 13. The display device according to claim 12,wherein, the backlight module further comprises a double-sided adhesive,the optical film is superimposed on the light guide plate, the backlightsource is fixed with the plastic frame and the optical film through thedouble-side adhesive.